THE cause of a single-vehicle incident that left three boys hospitalised is under investigation by police. Emergency services were called to Rutherford Road at Molong at 5pm on Monday following reports of a serious car crash. Police report that a 17-year-old boy and his two brothers were in a vehicle heading east on Rutherford Road when the vehicle hit a tree. The vehicle rolled and the ejected the 17-year-old, who police believe was driving, causing him to become trapped under the car. MAP: The road where the car crash occurred ... His two brothers managed to free themselves from the car and run for help. Assistance came from several adults at a nearby property who released the boy from the car and administered first aid. The 17- and 11-year-olds were airlifted to the Children's Hospital at Westmead suffering cuts and abrasions, where they remain in a stable condition. The 12-year-old boy was taken to Orange hospital suffering lower leg injuries that are not considered life-threatening. Inquiries into the crash will continue by officers from Central West Police District. Anyone with information about this incident is urged to contact Crime Stoppers on 1800 333 000 visit www.nsw.crimestoppers.com.au. Information is treated in strict confidence, and the public is reminded not to report crime via NSW Police social media pages.